Kelly and 3 white stripes make a great team sport sock. They are also a comfortable knee sock. The socks are made from 100% nylon to make them stretchy and durable. They also have compression arch and ankle support. Proudly made in the USA. Choose fromMEDIUM (fits ladies' shoe sizes 5 to 10 and men's 4.5 to 8.5) or LARGE (fits men's size 9-12 or ladies 11-12).